Slab Leaks: Signs of a Leak Under Your Foundation

A slab leak occurs when a water line beneath your home's concrete foundation springs a leak. Because it's hidden, it can cause significant damage before you notice. Here's what to watch for.

Warning signs

• The sound of running water when nothing is on
• Warm spots on the floor from a hot water line leak
• Unexplained increases in your water bill
• Cracks in floors or walls
• Damp or warped flooring
• Low water pressure

Why slab leaks are urgent

Left unaddressed, a slab leak can undermine your foundation, promote mold growth, and cause major structural damage. Early detection saves enormous repair costs.